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Heart|Natural|GIA

1.73ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 2448855859

Certificate GIA 2448855859

Diamond specifications and retailer prices

From $8,027 AUD
CA$7,832 CAD
As of October 30, 2026
Save $7,738 AUD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,765 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.73ct natural heart diamond

This 1.73ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2448855859. Listed at 12 retailers as of October 30, 2026, with prices from $8,027 to $15,765, a $7,738 spread on the same certified stone. NZ Jewellers lists it at $15,765. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.73
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2448855859
Dimensions7.26 × 8.39 × 4.94 mm
L/W Ratio1.16
Top View
7.26 mm8.39 mm1.73 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2448855859
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $15,765 AUD|Low: $8,465 AUD|High: $15,765 AUD|Avg: $10,236 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$8,465 AUD
Retailer 9$8,778 AUD
Retailer 6$8,987 AUD
Retailer 5$9,053 AUD
Retailer 11$9,093 AUD
Retailer 8$9,315 AUD
Retailer 7$9,609 AUD
Retailer 12$9,609 AUD
Retailer 3$9,922 AUD
Retailer 4$10,366 AUD
Retailer 2$13,887 AUD
NZ Jewellers$15,765 AUD

39 data points across 12 retailers

12 retailers$8,027 AUD to $15,765 AUD

A
Cheapest Retailer
-
$8,027 AUD
CA$7,832 CAD
A
Retailer 2
-
$8,465 AUD
$5,946 USD
View
A
Retailer 3
-
$8,778 AUD
$6,166 USD
View
A
Retailer 4
-
$8,987 AUD
$6,313 USD
View
A
Retailer 5
-
$9,053 AUD
£5,007 GBP
View
A
Retailer 6
-
$9,093 AUD
$6,387 USD
View
A
Retailer 7
-
$9,315 AUD
CA$9,087 CAD
View
A
Retailer 8
-
$9,609 AUD
$6,750 USD
View
A
Retailer 9
-
$9,609 AUD
$6,750 USD
View
B+
Retailer 10
-
$9,922 AUD
$6,970 USD
View
B+
Retailer 11
-
$13,887 AUD
£7,681 GBP
View
Most Expensive
B
NZ Jewellers
c53fb223-03de-49a4-badc-b00a7be0fb63 · Oct 30
$15,765 AUD
$11,074 USD
View
11 more retailers have this diamond
Prices start from $8,027 AUDSave up to $7,738 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.73ct Heart
$8,027 AUD